Fireproof wear-resistant electric wire

Abstract

The utility model discloses a fireproof wear-resistant electric wire, which comprises a plurality of core wires which are arranged in the electric wire and are arranged along the axis in a circle, the outer sides of the plurality of core wires are coated with a filling layer, the peripheral side of the filling layer is provided with a tensile strengthening layer, the peripheral side of the tensile strengthening layer is provided with a heat insulation layer, the peripheral side of the heat insulation layer is provided with a flame-retardant layer, and the flame-retardant layer is provided with a flame-retardant layer. By adopting the heat insulation layer with excellent heat insulation performance and ductility, the flame-retardant electric wire is suitable for the application of the electric wire in the implementation mode, the flame-retardant layer and the external high temperature of the flame-retardant layer can be isolated when the flame-retardant electric wire is used, and the flame-retardant electric wire has the advantages that the flame-retardant electric wire is high in flame-retardant performance, good in flame-retardant performance, good in flame-retardant performance and good in wear-resistant performance. And internal melting, damage, electric leakage and the like of the wire caused by over-high temperature are avoided. Meanwhile, the flame-retardant layer can form a firewall in the tensile strengthening layer and the interior of the wire after the outer layer of the wire body is damaged and fires, so that deep damage to the electrified wire is avoided and delayed, and the use effect is better in cooperation with the heat insulation layer.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wires and cables, in particular to a fireproof and wear-resistant electric wire. Background Art

[0002] Wires and cables refer to line components used for power, electrical and related transmission purposes. Generally speaking, there is no strict boundary between wires and cables. Products with a small number of cores, small product diameter and simple structure are usually called wires, while those without insulation are called bare wires, and the others are called cables. In actual applications, wires of different specifications can be selected according to actual needs.

[0003] During the installation and use of existing electrical wires, excessive friction or continuous friction often causes the wires to break, which results in the cable being scrapped and brings inconvenience to subsequent repair and maintenance. At the same time, the worn-out wires are prone to leakage, as well as fires caused by leakage or high temperature, which brings greater losses and safety hazards. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] Therefore, the purpose of the utility model is to provide a fireproof and wear-resistant electric wire to solve the problem that the existing electric wires proposed in the above background technology often break and damage the wires due to excessive friction or continuous friction during installation and use, thereby causing the cable to be scrapped and bringing inconvenience to subsequent repair and maintenance; at the same time, the electric wires are prone to leakage after being worn, and fire caused by leakage or high temperature, thereby bringing greater losses and safety hazards.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire-proof and wear-resistant electric wire, comprising a plurality of core wires located inside the electric wire and arranged in a circle along the axis, the outer sides of the plurality of core wires are coated with a filling layer, a tensile reinforcement layer is arranged on the outer peripheral side of the filling layer, a heat insulation layer is arranged on the outer peripheral side of the tensile reinforcement layer, a flame retardant layer is arranged on the outer peripheral side of the heat insulation layer, an outer protective layer is arranged on the outer peripheral side of the flame retardant layer, and a wear-resistant coating is arranged on the outer peripheral side of the outer protective layer.

[0007] As a preferred solution of the fireproof and wear-resistant electric wire described in the utility model, the outer wall of the core wire is also covered with an insulating layer, the outer wall of the insulating layer is covered with a shielding layer, and the outer side of the shielding layer is in contact with the filling layer.

[0008] As a preferred solution of the fire-proof and wear-resistant electric wire described in the utility model, the tensile reinforcement layer includes a coating body whose inner side is adhered to the filling layer and whose outer side is adhered to the thermal insulation layer, and the inner circle of the coating body has a plurality of steel wires evenly distributed and arranged along the length direction of the wire.

[0009] As a preferred solution of the fireproof and wear-resistant electric wire described in the utility model, the heat insulation layer is coated with two layers, one layer is coated on the outside of the coating body and the other layer is coated on the inside of the flame retardant layer.

[0010] As a preferred solution of the fireproof and wear-resistant electric wire described in the utility model, the outer side wall of the outer sheath also has evenly distributed wear-resistant protrusions, and the wear-resistant coating is coated on the outer side of the outer sheath and the wear-resistant protrusions.

[0011] As a preferred solution of the fireproof and wear-resistant electric wire described in the utility model, the filling layer is made of PP non-woven fabric, and the PP non-woven fabric is wound around the outer peripheral side of the core wire group.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: this kind of fireproof and wear-resistant electric wire can effectively improve the tensile resistance of the electric wire and the outer sheath of the electric wire by setting a tensile reinforcement layer on the inner layer of the electric wire, avoid and reduce the tensile cracks on its surface, and improve the wear resistance; through the cooperation of the outer sheath, the wear-resistant coating and the wear-resistant protrusions, the electric wire has good wear resistance and mechanical strength; through the cooperation of the heat insulation layer and the flame retardant layer, it can avoid the internal melting and damage of the electric wire and leakage caused by excessive temperature; the mutual cooperation provides an effective guarantee for the safe use and life cycle of the electric wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the inner layer structure of the electric wire of the utility model;

[0015] Figure 3 This is a schematic diagram of the front view of the cross-section of the electric wire of the utility model.

[0016] In the figure: 100, core wire; 110, insulation layer; 120, shielding layer; 200, filling layer; 300, tensile strengthening layer; 310, sheath; 320, steel wire; 400, thermal insulation layer; 410, flame retardant layer; 500, outer sheath; 5001, wear-resistant protrusions; 510, wear-resistant coating. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0018] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0019] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Figure 1-Figure 3 The schematic diagram of the whole structure of the fireproof and wear-resistant wire of the utility model is shown. Figure 1-Figure 3 A fireproof and wear-resistant electric wire in this embodiment includes a plurality of core wires 100 located inside the electric wire and arranged in a circle along the axis, a filling layer 200 is coated on the outer side of the plurality of core wires 100, a tensile strengthening layer 300 is arranged on the outer peripheral side of the filling layer 200, a heat insulating layer 400 is arranged on the outer peripheral side of the tensile strengthening layer 300, a flame retardant layer 410 is arranged on the outer peripheral side of the heat insulating layer 400, an outer protective layer 500 is arranged on the outer peripheral side of the flame retardant layer 410, and a wear-resistant coating 510 is arranged on the outer peripheral side of the outer protective layer 500.

[0021] The outer wall of the core wire 100 is also covered with an insulating layer 110, and the outer wall of the insulating layer 110 is covered with a shielding layer 120, and the outer side of the shielding layer 120 is in contact with the filling layer 200. Here, the insulating layer 110 can adopt the insulating rubber commonly used in the technical field. The shielding layer 120 can prevent the core wire 100 of the wire from electromagnetic cross-interference. This is a commonly used structural technical means in the field of wires and will not be elaborated in detail.

[0022] The tensile reinforcement layer 300 includes a sheath 310 which is adhered to the filling layer 200 on the inner side and to the insulation layer 400 on the outer side. The sheath 310 has a circle of steel wires 320 evenly distributed and arranged along the length direction of the wire. In the present embodiment, the sheath 310 is made of high temperature resistant rubber. By arranging a plurality of linearly distributed steel wires 320 inside the sheath 310, the tensile strength of the wire is effectively improved. It can be understood that the tensile performance of the outer sheath 500 of the wire is also indirectly enhanced, thereby avoiding or reducing the tensile cracks on its surface and improving the wear resistance.

[0023] The heat-insulating layer 400 is coated with two layers, one layer is coated on the outside of the coating 310 and the other layer is coated on the inside of the flame-retardant layer 410. Here, the heat-insulating layer 400 can be made of silicate heat-insulating coating or other coating materials with good heat-insulating properties. For example, silicate heat-insulating coating has good heat-insulating properties and ductility, which is suitable for the application of wires in this embodiment. When used, the flame-retardant layer 410 and the high temperature outside the flame-retardant layer 410 can be isolated to avoid the internal melting and damage of the wire, leakage, etc. caused by excessive temperature. At the same time, the flame-retardant layer 410 can form a firewall for the tensile strengthening layer 300 and the inside of the wire after the outer layer of the wire is damaged and caught fire, thereby avoiding and delaying the deep damage to the live wire, and the effect is better when used with the heat-insulating layer 400.

[0024] The outer wall of the outer sheath 500 also has evenly distributed wear-resistant protrusions 5001, and the wear-resistant coating 510 is coated on the outer side of the outer sheath 500 and the wear-resistant protrusions 5001. Here, the outer sheath 500 can be made of polyvinyl chloride, which is common in the field of wires and cables, and has excellent mechanical strength, wear resistance, weather resistance and bending resistance, and the outer sheath 500 has a relatively large thickness, thereby effectively ensuring and extending the service life of the wire; at the same time, the wear-resistant coating 510 can further enhance the wear resistance and indirect fire resistance of the outer sheath 500; and the wear-resistant protrusions 5001 distributed on the outer peripheral side of the outer sheath 500 can further reduce the wear between the wire and the object, which is simple and effective.

[0025] The filling layer 200 is made of PP non-woven fabric, which is wound around the outer peripheral side of the core wire group. Here, the PP non-woven fabric filling used has the characteristics of light weight, high strength and good heat resistance stability, which further ensures the service life of the wire.

[0026] In summary, the fireproof and wear-resistant wire of this embodiment effectively improves the tensile strength of the wire through the tensile strengthening layer 300 during use; at the same time, the heat insulation layer 400 has good heat insulation performance and ductility, and can isolate the flame retardant layer 410 and the high temperature outside the flame retardant layer 410 during use, so as to avoid the internal melting and damage of the wire, leakage, etc. caused by excessive temperature. At the same time, the flame retardant layer 410 can form a firewall for the tensile strengthening layer 300 and the inside of the wire after the outer layer of the wire is damaged and caught fire, thereby avoiding and delaying the deep damage to the live wire, and the effect is better when used with the heat insulation layer 400; and the outer sheath 500 has excellent mechanical strength, wear resistance, weather resistance and bending resistance, thereby effectively ensuring and extending the service life of the wire; at the same time, the wear-resistant coating 510 can further enhance the wear resistance and indirect fire resistance of the outer sheath 500.

[0027] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A fireproof and wear-resistant electric wire, characterized in that: The invention comprises a plurality of core wires (100) located inside the electric wire and arranged in a circle along the axis, the outer sides of the plurality of core wires (100) are coated with a filling layer (200), a tensile strengthening layer (300) is arranged on the outer peripheral side of the filling layer (200), a heat insulating layer (400) is arranged on the outer peripheral side of the tensile strengthening layer (300), a flame retardant layer (410) is arranged on the outer peripheral side of the heat insulating layer (400), an outer protective layer (500) is arranged on the outer peripheral side of the flame retardant layer (410), and a wear-resistant coating (510) is arranged on the outer peripheral side of the outer protective layer (500).

2. The fireproof and wear-resistant electric wire according to claim 1, characterized in that: The outer wall of the core wire (100) is also coated with an insulating layer (110), the outer wall of the insulating layer (110) is coated with a shielding layer (120), and the outer side of the shielding layer (120) is in contact with the filling layer (200).

3. The fireproof and wear-resistant electric wire according to claim 1, characterized in that: The tensile strengthening layer (300) comprises a covering body (310) whose inner side is adhered to the filling layer (200) and whose outer side is adhered to the heat insulation layer (400), and the covering body (310) has a circle of steel wires (320) evenly distributed and arranged along the length direction of the electric wire.

4. The fireproof and wear-resistant electric wire according to claim 1, characterized in that: The heat insulation layer (400) is coated with two layers, one layer is coated on the outside of the covering body (310) and the other layer is coated on the inside of the flame retardant layer (410).

5. The fireproof and wear-resistant electric wire according to claim 1, characterized in that: The outer side wall of the outer protective layer (500) also has evenly distributed wear-resistant protrusions (5001), and the wear-resistant coating (510) is coated on the outer side of the outer protective layer (500) and the wear-resistant protrusions (5001).

6. The fireproof and wear-resistant electric wire according to claim 1, characterized in that: The filling layer (200) is made of PP non-woven fabric, and the PP non-woven fabric is wound around the outer peripheral side of the core wire group.

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